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AIS Automatic Identification System
ANM AtoN Management
ASF Additional Secondary Factor
AtoN Aid(s) to Navigation
CIE Commission International de l'Eclairage (International Lighting Commission)
CIL Commissioners of Irish Lights
DfT UK Department for Transport
DGNSS Differential GNSS
DGPS Differential GPS
e-ANSI Electronic AtoN System Information
EC European Commission
ECDIS Electronic Chart Display Information System
ECS Electronic Charting System
EEP Engineering, Environment & Preservation
eLoran Enhanced Loran
EMRF European Maritime Radionavigation Forum
ENAV e-Navigation
ENC European Navigation Conference
ERDF European Regional Development Fund
ERNP European Radionavigation Plan
ESA European Space Agency
FAA Federal Aviation Administration (US)
GLA General Lighthouse Authority
GNSS Global Navigation Satellite Systems
GPS Global Positioning System
IALA International Association of Marine Aids to Navigation and Lighthouse Authorities
IEC International Electro-technical Commission
ILA International Loran Association
IMO International Maritime Organisation
IMO MSC IMO Maritime Safety Committee
IMO NAV IMO Safety of Navigation Sub-Committee
INTERREG Inter Regional European Union
INS Inertial Navigation System
ION Institute of Navigation (USA)
ISO International Standards Organisation
ITU International Telecommunication Union
JNRP Joint Navigational Requirements Policy
LORAN Long Range Navigation
LORAPP Loran Accuracy Performance Panel
MCA Maritime and Coastguard Agency
MIS Management Information System
MNE Marine Navigation Equipment
MRATC Marine Radio Advisory and Technical Committee
NLB Northern Lighthouse Board
NMSC National Marine Safety Conference
NPL National Physical Laboratory
NPL-OTMN NPL - Optical Technology and Metrology Network
RACON Radar Beacon
R&RNAV Research & Radionavigation
RIN Royal Institute of Navigation (UK)
RNAV Radionavigation
RTCM Radio Technical Commission for Maritime Services
SC Special Committee
SG Study Group
SOLAS Safety of Life at Sea
TH Trinity House
UKISC United Kingdom Industrial Space Committee
USCG United States Coast Guard
VTM Vessel Traffic Management
WBS Work Breakdown Structure
WP Work Package
WWRNS World Wide Radio Navigation System